Elastic JavaScript Guild October 2020: These go to eleven

Writing code that generates code is hard. But by leveraging knowlege of how the V8 JavaScript engine optimizes code, we can use this technique to write extremely fast data parsers, schema validators etc. In this talk we’ll learn how to write code that would make a mad scientist jealous, pushes V8 to eleven and make Christopher Nolan consider a sequel to Inception.

Transcript

1. Thomas Watson @wa7son github.com/watson
2. github.com/watson/talks @wa7son
3. These go to eleven! @wa7son
4. How to write code that writes code @wa7son
5. _why? @wa7son
6. performance @wa7son
7. github.com / mafintosh / is-my-json-valid @wa7son
8. @wa7son
9. @wa7son
10. f(seed, data) @wa7son
11. f2 = f1 (seed) f2 (data) @wa7son
12. An oversimplified example @wa7son
13. An oversimplified example @wa7son
14. An oversimplified example @wa7son
15. @wa7son
16. @wa7son
17. @wa7son
18. $ node example.js user is admin @wa7son
19. @wa7son
20. $ node example.js user is NOT admin @wa7son
21. @wa7son
22. $ node example.js function anonymous() { var admin = true } @wa7son
23. @wa7son
24. $ node example.js user is NOT admin @wa7son
25. @wa7son
26. $ node example.js user is admin @wa7son
27. $ node example.js user is admin Thomas, at least mention prototype pollution, so people do not think you have lost your marbles @wa7son
28. @wa7son
29. $ node example.js Hello World @wa7son
30. @wa7son
31. $ node example.js 2 @wa7son
32. @wa7son
33. $ node example.js 4 @wa7son
34. @wa7son
35. $ node example.js owned NaN @wa7son
36. @wa7son
37. $ node example.js NaN @wa7son
38. use cases @wa7son
39. Regular Expressions @wa7son
40. Templates @wa7son
41. JSON Schema @wa7son
42. MongoDB query language @wa7son
43. Let’s write a query language interpreter @wa7son
44. Our language @wa7son
45. coding time @wa7son
46. github.com / mafintosh / generate-object-property @wa7son
47. @wa7son
48. github.com / mafintosh / generate-function @wa7son
49. @wa7son
50. Thank you @wa7son github.com/watson